The 3.0M 125MM x 47MM (2EX) Cant Rail - Pressure Treated Brown is a pressure-treated cant rail for the horizontal framework of traditional feather edge fencing. Sold as a 125 x 47mm (2EX) rail and supplied at 3m long, its angled profile is designed to support vertically fixed overlapping boards rather than acting as a decorative finishing timber.
The 3m length is additional working length for wider or non-standard sections, longer repairs and jobs where a 2.4m rail would be too short or create an inconvenient joint. Set the post positions first, measure the actual span and only then cut the rail. Building the framework around the real site dimensions is one of the main advantages of loose feather edge boards and rails compared with a fixed-width panel system.
The brown pressure-treated finish gives new timber a darker, warmer starting colour while providing preservative protection for exterior use. It is not a paint coating, so grain, knots and treatment shade can vary naturally and the colour will weather after installation.
Cant rails need solid support at their ends and suitable exterior fixings into the posts or supporting timber. Keep each rail level and align repeated rails down the run before the feather edge boards are fixed. The number and vertical position of rails depends on the fence design, so it should be planned around the board length and completed structure rather than copied blindly from a different fence.
Compare alternative rail lengths in the cant rails range and select suitable wooden fence posts around the finished fence height and site conditions. For new runs, the feather edge fence calculator can help estimate the quantities of boards and associated components required.